Контроллеры для AC-DC UCC25600D

DC/DC контроллер , режим резонанса, 11.5В до 18В, 1 выход, 380кГц, SOIC-8

The UCC25600D is a 8-pin High Performance Resonant Mode Controller designed for DC-to-DC applications using resonant topologies, especially the LLC half-bridge resonant converter. The internal oscillator supports the switching frequencies from 40 to 350kHz. This high-accuracy oscillator realizes the minimum switching frequency limiting with 4% tolerance, allowing the designer to avoid over-design of the power stage and, thus, further reducing overall system cost. The programmable dead time enables zero-voltage switching with minimum magnetizing current. This maximizes system efficiency across a variety of applications. The programmable soft-start timer maximizes design flexibility demanded by the varied requirements of end equipment using a half-bridge topology. By incorporating a 0.4A source and 0.8A sink driving capability, a low cost, reliable gate driver transformer is a real option.

• Variable switching frequency control
• Programmable minimum switching frequency with 4% accuracy (3% accuracy, -20 to 105°C temperature)
• Programmable maximum switching frequency
• Programmable dead time for best efficiency
• Programmable soft-start time
• Easy ON and OFF control
• Over-current protection
• Over-temperature protection
• Bias voltage UVLO and overvoltage protection
• Integrated gate driver with 0.4A source and 0.8A sink capability

• Green product and no Sb/Br

Области применения

Управление Питанием, Потребительская Электроника, Компьютеры и Периферия, Аудио, Мультимедиа, Освещение